When processing barley for the brewing and food industries, one of the process steps is the separation of barley grains. After separation, waste fractions are created that contain damaged grains, dust, stones, grass, clay residues, etc. The waste fractions therefore contain recyclable components. It is important to find a suitable way to use these waste fractions. This research is focused on the possibilities of applying torrefied waste fractions as soil enrichment to support plant growth. The first waste fraction contained lower-quality barley grains that are used as feed for livestock. The second waste fraction contained grass seeds and chaff and can be used as feed for forest animals. The third waste fraction, which contained aspiration dust, is currently being incinerated and disposed at biogas plants. Experiments were conducted with different ratios of torrefied fractions added to the soil and the values of total nitrogen were analyzed as an indicator of the benefit to the soil. The results showed that torrefied waste fractions exhibit positive properties for plant growth. The best results were achieved with a mixture containing 10 and 50 % of soil enriched with torrefied second and third waste fractions. Experiments confirmed a positive effect on plant growth, which suggests the possibility of applying this procedure in practice. Compared to current research, this method can contribute to the sustainable management of biowaste and its effective use for improving soil conditions with a high potential for sustainable agriculture.

来源平台：ENERGY CONVERSION AND MANAGEMENT-X